Wednesday, August 15, 2012

Tar Balls

Not from Linux...

In these sunny days in the attic it gets like 120F. In Oregon. (I have one of the weather station's sensors in there. I wonder how it is in hotter states). The tiles of the roof are made of bitumen and tiny pieces of it break and fall through the cracks of the plywood underneath the tiles and mix with the insulation and start decomposing. The more volatile components go first and smell bad but the big problem is the nutrients that are coming from the barbecues. They rot in there and mix with the smell of tar and make a stink that combined with other stinks i described here earlier make your life very hard in a place like this. Tar is antibacterial but i think it favors some yeasts. When i opened the attic this morning to take a sample of the insulation that contains these (actually the tiny tar balls separated from the wool rock in the bottom of the bag i used and when shaken make a sound like they're already dried, the volatile components evaporated but they still smell) there was a back flow from the attic inside the apartment. That's because my next door neighbor has a window opened in the direction where the wind is coming from or the two fans in the window are working creating pressure that goes through the cracks or by the lid into the attic and make that smell to back flow into my apartment or through the intake above the kitchen window or through the vents. And because she/he had the fans started yesterday, the temperature in the attic didn't go that high at the expense of the back flow above the kitchen window. But yesterday morning when i had breakfast i had the kitchen window opened then i got really really sick, almost...

To take the macro below i used one more 55 mm fixed length camera lens held by hand at about one inch in front of my 70-105 equivalent Sony/Minolta lens with the zoom at maximum. First i put the focus on automatic and it did focus but for more precise focus i put the focus on manual ant then moved around until i got it. You may click or middle click on it to better view.

The distance between two graduations on the tape measure below is 1/32 inches. The tar samples have been shaken out of a small insulation sample that could been caught between two fingers but these are only a small part. The total amount is probably in the order of 1/10-1/100 of the total mass of the mineral fiber insulation.

(Macro photographs done with one extra 55 mm lens held by hand at one inch in front of the 28-105 mm stock lens of my Sony DSLR-300 set at maximum or 105 mm. The distance between the out of focus ruler divisions is 1/32 inch. Can click to enlarge)



Although it does not look like asbestos to me (in the picture looks more like it but in reality not, these fibers a lot shinier and more regulated) when i manipulated the sample that's already been shaken to extract the above sub-sample in the sunlight near the window i saw one million shiny sparkles that dissipated in a few seconds i don't know where, and i also felt the smell and the sting in my throat.

Or maybe... from here? http://www.flickr.com/photos/39325385@N07/7686495606/in/photostream Or here? http://www.flickr.com/photos/39325385@N07/9472963275/

2 comments:

George Ion said...

I just finished sweeping that parking spot. 6-7 dustpans maybe 10-20 pounds of tar dust and some gravel. I sprinkled a little oil to avoid dusting while sweeping and further erosion. Then i figured how that dust gets into the attic, or maybe this is just the cover. The power dust blowers, every Tuesday morning. Interestingly enough, no other spot has significant amounts of tar dust and erosion. Maybe they avoid dusting that area. Maybe there was too much erosion.

George Ion said...

And then i also remembered the bloody glue used for plywood http://www.britannica.com/EBchecked/topic/5823/adhesive/82531/Blood-albumen-glue

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